Car coupler



Dec. 9, 1924- A. J. BAZELEY CAR COUPLER Filg June 30, 1921 2 Sheets-SM-et l Dec. 9, 1924- Y 1,518,299

A. J. BAZELEY CAR COUPLER Filed June 30, 1921 2 Sheets-Sheet 2 0/1/5170 dam/L 9 W Patented Dec. 9, 1924.

UNITED STATES ()FFICE ARTHUR JAMES BAZELEY, 0F CLEVELAND, OHIO, ASSIGNOR, BY ASSIGNMENTS, T0 NATIONAL MALLEAZBLE AND STEEL CASTINGS COMPANY, OF CLEVELAND, OHIO,

a oo-nronarxon' or OHIO,

CAR COUPLER.

AppIicati-on filed. June 30, I921. Serial No. 481,468.

To all 10710112 it play concern."

lie it kw that I. ARTHUR Janus l'lIZELICY, a; c Zen of the United States, residing at Cleveland, Onyahoga @ounty, Uhic, have invented new and useful linpro've'ments in Car Couplers, of which the following is a spetafi-cation, reference being had to the accompanying drawings, in which- Fig. 1 is a vertical longitudinal section of a coupler embodying my invention; Fig. 2 is a horizontal section thereof; and Fig. 3 is a detail in plan of the lower ear of the coupler.

My invention relates to car couplers, and particularly to providing a coupler which not only is extremely eflicient in coupling and uncoupling but is also especially designed to resist the unusual stresses of modern service conditions. To this end my improved coupler has its bufling face arranged at right angles to the line of draft; depressions are formed on the knuckle cooperating with ribs on the head to protect the pivot pin from strain and take up the pull; the tail of the knuckle has a pro ection and recess engagement with the coupler head so as to transmit the pull in draft directly to the head and not through the pivot pin. In addition to the foregoing, my invention also comprises the construction and arrangement of the various features which I shall hereinafter describe and claim.

Referring to the drawings, A is the coupler head, B is the knuckle, C is the locking and opening piece, and D is the pivot pin for the knuckle. The lock C has a head 2 which acts as the locking piece, a depending leg 3 which acts as the opening piece, and a connecting horizontal portion 4; which extends across the knuckle tail upon which the lock normally rides,

The bufiing faces 18 and 19 of the coupler and knuckle, respectively, as is shown in Fig. 2, are arranged at right angles to the line of draft, so as to provide for the direct application of the boiling force. Upon the knuckle and just to the rear of the pin hole are the depressions 20", into which fit corresponding ribs 21 on the inside of the coupler ears. The engagement of these parts with one another provides a pulling connection between the knuckle and coupler head, which assists in relieving the pivot pin of strain. In bull" the rear surfaces of the extensrons 20 contact wit the surface 21 at the rear of the ear sir aces 21. T he hub surfaces 20 extend forwardly around the pin hole, terminating in the vertically disposed step s o-ulclers 2t), whicl'r engage corrc pending shoulders 21. on the ears to prevent the knuckle from swinging too far outwardly. Similarly, the stop shoulders 20 at the rear of the pin hole engage the end faces 21 of the portions 21" of the cars, which act as stops to limit the closing movement of the knuckle and also take up some of the buffing stresses. To prevent dirt and cinders from lodging around the hub the surface Q1 immediately in front .of the shoulder 21 on the lower ear is bevelled, and that part 20 of the depressed portion of the upper hub 20 to the rear of the shoulder 20 is likewise bevelled. The formation of the extensions 20 and stop; shoulders 2O provides surfaces which bear laterally against the corresponding surfaces of the ribs 21 in draft and serve to relieve the pivot pin of lateral strains. The tail of the knuckle has a downwardly extending lug 22, which in locked position engages an upward projection 23 on the floor of the coupler cavity, thereby serving with the extensions 20 and ribs 21 to transmit the draft strains directly from knuckle to coupler head and relieve the pivot pin from strain.

The terms and expressions which I have employed are used as terms of description and not of limitation, and I have no intention, in the use of such terms and expressions, of excluding any mechanical equivalents of the features shown and described, or portions thereof, but recognize that various structural modifications are possible within the scope of the invention claimed. The arrangement of head and lock to guide and maintain the lock in the coupler head and the pivot pin support are described and claimed respectively in my divisional applications Nos. 625,355 and 625,356, filed March 15, 1923.

What I claim is:

1. In a car coupler, a coupler head having ears and a knuckle therebetween, the hub of the knuckle having uninterrupted hub surfaces forward of the knuckle pin when the knuckle is in open position, the hub of the knuckle also having depressions therein to the rear of the pivot pin when the knuckle is in open position, shoulders on the hub of the knuckle beginning substantially at and extending outwardly from the pivot pin hole formed by said depressions, said depressions and shoulders cooperating with lugs on the coupler ears; to limit the outward and inward movement of the knuckle, cooperating arc-shaped shoulders on the knuckle and ears in the region of the hub forming a pulling engagement between; knuckle and ears, and in conjunction with the first named shoulders, adapted to relieve the pivot pin of lateral pressure.

2. In a car coupler, a coupler head having ears and a knuckle therebetween. the hub of the knuckle having uninterrupted hubi surfaces forward of the knuckle pin hole when the knuckle is in open position, the hub of the knuckle also having depressions therein to the rear of the pivot pin when the knuckle is in open position, shoulders on the hub of the knuckle beginning substantially at and extending outwardly from the pivot pin hole formed by said depressions, said depressions and shoulders cooperating with lugs on the coupler ears, an upward projection on the floor of the coupler engaging a depending portion of the knuckle, said shoulders and depending portion on the knuckle cooperating with said recesses and projection on the coupler head to transmit pulling strains from knuckle to coupler and thereby relieve the pivot pin from strain.

ARTHUR JAMES BAZELEY. 

